... the creep response of the magnetically annealed and reference samples, short 45 min duration creep tests were carried out. An equivalent to the macroscale creep compliance was calculated using the aforementioned nanocreep data. Using the continuous contact compliance (CCC) analysis, the phase lag angle, tan...

... the creep strength of the P911 grade pipe base material. The long-term objective of this work was to study the influence of weld metal creep strength on the overall creep behavior of the welded joints and their failure mechanism. Uniaxial creep tests at 600 ° C and stresses ranging from 70 MPa to 150 MPa...

.... This paper investigates the effect of embedded PZT crystals on the overall creep behavior of sandwich beams comprising of glass fiber reinforced polymer laminated skins and polymer foam core, which could potentially be used as a damage-detecting smart structure. Uniaxial quasi-static and creep tests were...

... registering a monotonic drop, the stress first increases then decreases. The rate of change of stress, therefore, is initially positive and then becomes negative. Similarly, in creep tests, the strain was found to decrease at first, and then began to increase. This has been labeled as rate-reversal...

... Validation of the Ti - 6242 computational model with experimental results for tension creep The computational model developed for polycrystalline Ti - 6242 alloy is validated with results of the constant strain rate and creep tests discussed in Sec. 6A . The FE ensemble model...

... elasticity martensitic transformations neutron diffraction ultrasonic measurement electrical resistivity micromechanics crystal structure stress effects cooling recovery-creep creep testing Shape memory alloys (SMA) are used in engineering applications for their unique stress-strain...

... creep fatigue stress-strain relations hysteresis creep testing fatigue testing In this paper the reversing dc electrical potential technique ( 1 2 ) has been used for the determination of the damage mode during creep fatigue interaction. The creep-fatigue damage mechanism is not merely...

..., “Hypoelesticity Model Based Upon the Logarithmic Stress Rate,” J. Elast., 47, pp. 51–68 ]. 26 09 2004 09 03 2005 polymers amorphous state deformation creep testing recovery-creep viscoplasticity Solid polymers are replacing metals not only in decorative but also in load carrying...

... deformation experiments. Table 2 includes the corresponding calculated initial stress levels for each of the three notch positions measured. Using this simulation technique, the predicted temperature for the ROI section in the creep test device is determined. It should be kept in mind...

... and creep tests are conducted at temperatures ranging from room temperature (RT) to 1038 ° C to characterize the deformation response. The constitutive model is implemented as a User MATerial subroutine (UMAT) in ABAQUS (2003, Hibbitt, Karlsson, and Sorensen, Inc., Providence, RI, v6.3) and a parameter...

...Tim Jaglinski; Roderic Lakes Commercial, aluminum die-cast alloys are subject to long-term stresses leading to viscoelastic material responses resulting in inefficient engine operation and failure. Constant load creep tests were conducted on aluminum die-casting alloys: B-390, eutectic Al-Si...

..., temperatures of 500 ° C and 620 ° C , and the times varied between 48 and 120 hours. Following the creep tests all specimens were evaluated magnetically and then metallurgically by optical and scanning electron microscopy, x-ray diffraction (XRD) and by energy dispersive spectroscopy (EDS). The microstructural...

... compliance (modulus) without complications arising from the effects of shear deformation during bending. Linear bearings were used to allow the carriage to descend freely and apply the load to the specimen. Thus, the load is fixed and equal to the weight of the carriage, resulting in a true creep test...

... 28 January 2001 wear corrosion creep testing boilers temperature distribution austenitic steel The method of calculating the creep life of superheater/reheater tubes installed in fossil-fuelled boilers is well established and automated. There are a number of computer programs...

..., pp. 235–245. Askins , M. C. , and Marchant , K. D. , 1988 , “Remaining-Life Estimation of Boiler Pressure Parts, Volume 2: Miniature Specimen Creep Testing,” EPRI CS-5588, Volume 2, Final Report on Research Project 2253-1, Electric Power Research Institute, Palo Alto, CA. Jaske, C. E...